Release of formaldehyde by 4 endodontic sealers
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Fontes externas
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Coorientador
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Editor
Elsevier
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Artigo
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Acesso restrito
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Resumo
Objective. The purpose of this study was to evaluate the release of formaldehyde by some root canal filling materials. Study design. Two older endodontic sealers, AH 26 and Endomethasone, and 2 recently available sealers, AH Plus and Top Seal, were analyzed. Infrared and electronic spectroscopy were used to determine formaldehyde content after set of the materials. Results. Analysis showed that the AH 26 and Endomethasone sealers released formaldehyde. Although the AH Plus and Top Seal sealers have similar chemical composition, they released formaldehyde in a minimal concentration. Conclusions. The AH 26 and Endomethasone sealers released formaldehyde after setting; however, a minimum release was observed for the AH Plus and Top Seal sealers. Copyright © 1999 by Mosby, Inc.
Descrição
Palavras-chave
ah 26 filling material AH Plus antiinflammatory agent bismuth corticosteroid methanetriol mixture dexamethasone drug derivative epoxy resin fixative formaldehyde hydrocortisone methenamine paraformaldehyde polymer root canal filling material silver thymol titanium Topseal chemistry drug combination human infrared spectrophotometry physical chemistry spectrophotometry topical drug administration ultraviolet spectrophotometry Administration, Topical Anti-Inflammatory Agents Bismuth Chemistry, Physical Dexamethasone Drug Combinations Epoxy Resins Fixatives Formaldehyde Humans Hydrocortisone Methenamine Polymers Root Canal Filling Materials Silver Spectrophotometry Spectrophotometry, Infrared Spectrophotometry, Ultraviolet Thymol Titanium
Idioma
Inglês
Citação
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics, v. 88, n. 2, p. 221-225, 1999.
